Lamp support



FIG. 1 is a front perspective view of an ornamental design for a lamp support in accordance with the present invention;

FIG. 2 is a rear view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof; and

FIG. 7 is a front perspective view of an alternative embodiment thereof.

The lamp units are shown in broken lines for illustrative purposes only. 

The ornamental design for a lamp support, substantially as shown and described. 